Question

F 7. Evaluate the zeroes of the polynomial 2x2 - 16. (a) 272,-212 (b) 3,- (c) 4,-4 (d) 2, -2​

Answer 1

Answer:

$2 x { }^{2} \: - 16 = 0 \\ 2x { }^{2} = 16 \\ x {}^{2} = 16 \div 2 \\ x {}^{2} = 8 \\ x = + - \sqrt{8} \\ x = - 2 \sqrt{2} \: \: \: \: and \: \: + 2 \sqrt{2} \\ \\ \\ by \: taking \: round \: off \: and \: asper \: given \: question \: option \: \: d \: is \: correct$